نتایج جستجو برای: oil cracking temperature window

تعداد نتایج: 651532  

2015
Wren Montgomery Mark A. Sephton Jonathan S. Watson Huang Zeng Andrew C. Rees

The majority of global petroleum is in the form of highly viscous heavy oil. Traditionally heavy oil in sands at shallow depths is accessed by large scale mining activities. Recently steam has been used to allow heavy oil extraction with greatly reduced surface disturbance. However, in situ thermal recovery processes can generate hydrogen sulphide, high levels of which are toxic to humans and c...

2009
Sheng Tang

Bio-oil is a dark brown, mobile liquid derived from the thermo-chemical processing of bio-mass. Bio-oils generally contain water and lignin. Lignins are highly-available, well-studied carbohydrate derivative known for their antioxidant properties. For asphalt pavements, oxidation can cause deterioration, a longterm aging process, and eventually result in cracking. Therefore, bio-oil could poten...

2013
Theodore Dickerson Juan Soria

Catalytic pyrolysis is a promising thermochemical conversion route for lignocellulosic biomass that produces chemicals and fuels compatible with current, petrochemical infrastructure. Catalytic modifications to pyrolysis bio-oils are geared towards the elimination and substitution of oxygen and oxygen-containing functionalities in addition to increasing the hydrogen to carbon ratio of the final...

2008

try (HPI), cracking is the process whereby complex organic molecules (e.g.heavy hydrocarbons) are broken down into simpler molecules by the breaking of carbon-carbon bonds in the base material. The rate of cracking and the nature of end products strongly depend on the temperature and presence of any catalysts. Process automation equipment including gas analysis instrumentation contributes essen...

2015
Maxime Gautier Vandad Rohani Laurent Fulcheri Juan Pablo Trelles

Allothermal cracking of methane is a suitable and eco-friendly way to simultaneously produce hydrogen and carbon black. The economic viability of the process relies on the ability to produce carbon black having well-defined characteristics, particularly concerning the particle size. A model for the study of the carbon particle size distribution during thermal cracking of methane has been develo...

Journal: :Journal of The Japan Petroleum Institute 2000

Journal: :International Journal of Earth Sciences 2021

Abstract The origin, migration pathways, as well the influence of secondary processes oil and natural gas accumulated in lower Cretaceous to Miocene strata western part Polish Outer Carpathians (between Kraków Pilzno towns) based on results organic geochemical analyses are investigated this paper. Oil thermogenic hydrocarbon gases were generated mainly from type II kerogen, III kerogen mixed va...

Journal: :Journal of the Fuel Society of Japan 1973

Journal: :پژوهش نفت 0

the conversion process of heavy hydrocarbons to the valuable products such as gasoline is an important operation in the oil refineries.one important process is the “fluidized catalytic cracking” (fcc).feed injection in fcc process has an important role in the selectivity and properties of the products.performance of the feed injection system is dependent on the atomizers.the size and contributi...

2006
K. A. Mahgoub S. Al-Khattaf

_____________________________________________________________ Different catalysts based on Y-zeolite, ZSM-5 and amorphous kaolin were prepared and characterized. The catalytic cracking of 1,3,5-triisopropylbenzene (1,3,5-TIPB), 1,4diisopropylbenzene (1,4-DIPB) and n-dodecane were used to investigate the effect of catalyst nature on the catalytic performance. Cracking the largest molecule (1,3,5...

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